diff -C 5 ./command.c new/command.c
*** ./command.c	Wed Mar 21 22:00:18 2001
--- new/command.c	Mon Mar 26 08:36:22 2001
***************
*** 251,260 ****
--- 251,278 ----
  
  		free(opt1);
  		free(opt2);
  	}
  
+ 	/* \cd */
+ 	else if (strcasecmp(cmd, "cd") == 0)
+ 	{
+ 		if ( chdir( options_string ))
+ 		{
+ 			psql_error("\\%s: could not change directory to '%s'\n", 
+ 					cmd, options_string );
+ 			success = false;
+ 		}
+ 		else 
+ 		{
+ 			success = true;
+ 		}
+ 		/* wind pointer to end of line */
+ 		if (string)
+ 			string += strlen(string);
+ 	}
+ 
  	/* \copy */
  	else if (strcasecmp(cmd, "copy") == 0)
  	{
  		success = do_copy(options_string);
  		if (options_string)
diff -C 5 ./help.c new/help.c
*** ./help.c	Wed Mar 21 22:00:20 2001
--- new/help.c	Mon Mar 26 08:37:13 2001
***************
*** 194,203 ****
--- 194,204 ----
  	/* if you add/remove a line here, change the row test above */
  	fprintf(fout, " \\a             toggle between unaligned and aligned mode\n");
  	fprintf(fout, " \\c[onnect] [dbname|- [user]]\n"
  			"                connect to new database (currently '%s')\n", PQdb(pset.db));
  	fprintf(fout, " \\C <title>     table title\n");
+ 	fprintf(fout, " \\cd <dir>      change the current working directory\n");
  	fprintf(fout, " \\copy ...      perform SQL COPY with data stream to the client machine\n");
  	fprintf(fout, " \\copyright     show PostgreSQL usage and distribution terms\n");
  	fprintf(fout, " \\d <table>     describe table (or view, index, sequence)\n");
  	fprintf(fout, " \\d{t|i|s|v}    list tables/indices/sequences/views\n");
  	fprintf(fout, " \\d{p|S|l}      list permissions/system tables/lobjects\n");